C 293 3 
Body that is not eledric as is evident, when it is 
touched, whilft it refts on the Stand of Giafs, with 
the Finger, for it then inftantly becomes cledric : 
and the fame will alfo happen when it is touched 
with a Piece of Metal 5 but not when it is touched 
with a Tube of Glafs that is dry. 
The eledrical Refts produce here upon the Bottle 
an EfFed fo contrary to M. du Fays Rule, That, if 
one places a Phial, perfectly well eledrified, and 
which throws out the Pencil of Fire copioufly, upon 
a dry Stand of Glafs, or upon a Line of Silk 5 its Light 
immediately goes our, and its Eledricity is as it were 
laid to fleep. One may' then fecurely approach the 
Finger to its Wire, and there will come no eledrical 
Sparks from it. The Author has even drawn out of 
it intirely both the Wire and the Cork, and has kept 
it half an Hour in his Pocket, without deftroying the 
Eledricity. But one muft only, in this Cafe, touch 
the Wire, and not the Phial itfelf 5 for, in touching 
the two at the fame time, one returns to the Ley- 
den Experiments but when one touches the Phial 
only, the Eledricity revives in the Wire, and the 
Pencil of Fire difplays itfelf again, provided one has 
not ftaid too long : But if the Wire only is touched, 
the Body of the Bottle becomes ftrongly eiedric, and 
draws to it, from a couliderable Diftance, any light 
Subftances. 
This laft Cafe gives Room to an Experiment that 
looks at firft like Magic : There was hung up a litle 
tinkling Bell by a filver Wire, at the Height of eight 
or nine Feet, and there was placed upon a glafs Stand 
well dried, a Phial newly eledrifkd $ the Centre of 
the 
